Resumo do erro !
What I expected to happen was ...: *
That was not posivel put potions stacked in Brewing Stand!
What really happened was ...: *
using the command / give player generates 373 64 64 Stacked pots with water and put in posivel Brewing Stand the 64 pots stacked!
Steps to reproduce: *
get ingredients to make potion and give / give player 373 64 ai put the 64 Potion Brewing Stand piled on and you spend just one ingredient!
Video showing the bug:
This is because water bottles cannot be stacked. To achieve this, you would have to either use a mod, or edit the game files.